每个数据库,不同的日期格式化: 1.mysql 2.sqlserver 使用Convert()函数: select convert(char(10),GetDate(),120) as Date 第3个参数就是用来设置日期类型数据的显示样式的,下面介绍几种样式的参数: 3.vba Sub 测试() Dim Con As Object Set Con = CreateObject("ADODB.Connection") Con.Open "Provider=Microsoft.…
每天学习一点点 编程PDF电子书免费下载: http://www.shitanlife.com/code cast(starttime as date): 时间转日期类型 实例SQL: SELECT COUNT (ID) AS pvNum, COUNT (DISTINCT userid) AS userNum, cast(starttime as date) AS staDay FROM t_e_visit_record WHERE true AND starttime >= '2018-03…
SET DATEFORMAT 的设置是在执行或运行时设置,而不是在分析时设置. SET DATEFORMAT 将覆盖 SET LANGUAGE 的隐式日期格式设置. 该设置仅用在将字符串转换为日期值时的解释中.它不影响日期值的显示. SET DATEFORMAT mdy SELECT DATEPART(yy, '12/09/10') AS 'Year Number' ------------------------------ Year Number 2010 ================…
DECLARE @dt1 DATETIME,@dt2 DATETIME,@a BIGINT,@b BIGINT SET @dt1='2010-01-01'--开始日期 SET @dt2='2010-06-30'--结束日期 SELECT @a=CAST(@dt1 AS BIGINT),@b=CAST(@dt2-@dt1 AS BIGINT) SELECT CAST(ABS(CHECKSUM(newID()))%@b+@a AS DATETIME)+RAND() AS 日期…